人民币汇率波动与股票市场价格报酬的关系研究

本文通过利用协整理论、GARCH模型对人民币汇率波动和股票市场价格报酬进行实证分析,结果表明:人民币汇率波动和股票市场价格报酬存在长期均衡关系,前者是后者的单向格兰杰因果关系,二者呈现负相关关系,这意味着汇率升值的时候将推动股票市场价格上涨.最后笔者根据汇率和股票市场的波动关系提出相关的政策建议.     

人民币汇率波动与股票市场价格报酬的关系研究

本文通过利用协整理论、GARCH模型对人民币汇率波动和股票市场价格报酬进行实证分析,结果表明:人民币汇率波动和股票市场价格报酬存在长期均衡关系,前者是后者的单向格兰杰因果关系,二者呈现负相关关系,这意味着汇率升值的时候将推动股票市场价格上涨。最后笔者根据汇率和股票市场的波动关系提出相关的政策建议。     

我国股票市场和汇率市场的波动溢出效应及非对称性研究

本文运用GARCH族模型系统分析了疫情发生后我国汇率市场和股票市场的波动溢出效应及其非对称性。实证结果发现：第一,BEKK-GARCH模型结果表明股票市场对汇率市场存在单向的、不对称的波动溢出效应。第二,TGARCH模型表明股票市场和汇率市场都存在非对称性,股票市场和汇率市场中坏消息引起的波动比同等好消息引起的波动要大。第三,DCC-GARCH模型表明股票市场上涨与人民币升值之间存在正向动态相关性,且相关关系愈加紧密。基于此,本文从完善人民币汇率形成机制、加强跨境资金监管、稳步推进资本项目扩大开放等方面提出相关政策建议。     

国际股票市场、汇率冲击对我国股票价格影响的实证研究

随着金融一体化的发展,20世纪90年代中期以后股票市场联动的现象日益显著,我国外贸依存度不断提高、金融服务业逐步开放,2005年7月21日人民币汇率形成机制改革以来,汇率浮动区间的扩大是否起到了缓解国际市场冲击的作用成为理论界有待探讨的问题.本文分析了美国股票市场和汇率与我国股票价格之间的作用形式和程度,并对汇率是否起到缓解国际股票市场冲击的作用进行了检验.结果表明,在人民币升值的趋势下,汇率变化在股票市场面临负向冲击时,起到一定的缓冲作用;在股票市场面临正向冲击时,起到的是加速作用.     

央行汇率沟通与股票市场波动

本文基于2005年7月至2017年2月的日度数据,检验中国央行汇率沟通对于股票市场波动率的影响,研究结果发现:(1)央行汇率沟通会对本国股票市场产生明显的溢出效应,并显著增加股票市场的波动率,B股市场波动率反应程度显著强于A股市场。(2)书面沟通的效果强于口头沟通,口头沟通中行长沟通效果强于非行长沟通;汇率贬值的沟通效果显著强于汇率升值沟通。(3)汇率沟通对于股票市场波动率的影响存在着明显的非线性。     

人民币汇率波动对我国资本市场的影响

经济全球化是世界经济发展的必然趋势,随着经济全球化的推进,金融自由化也日益盛行。而在人民币2016年10月1日正式加入SDR之后,国际金融市场对人民币汇率的影响将会更加强烈,人民币的汇率波动可能会更加剧烈。人民币汇率的波动,对资本市场的影响无疑是最大的,无论是对股票市场的影响,还是对债券市场的影响,都是值得人们关注的。对人民币汇率波动的研究,能降低我国资本市场受到的国际金融市场的冲击力,从而为我国的资本市场提供一个健康、稳定的发展环境。本文从汇率波动对我国股票市场的影响和汇率波动对我国债券市场的影响两方面进行了分析,对人民币汇率波动影响我国资本市场的具体情形提出了自己的一点看法。     

人民币汇率政策推出时机抉择: 汇率与股指相关性视角

通过构建T-Copula-GARCH模型从人民币汇率与股市指数相关性视角,分析我国深化金融市场改革开放背景下汇率政策推出时机抉择。结果表明：人民币兑美元、日元汇率贬值时,上证指数下降;而人民币兑美元、日元汇率升值时,上证指数上涨。人民币兑欧元汇率、人民币指数升值时,上证指数下降;而人民币兑欧元汇率、人民币指数贬值时,上证指数上涨。人民币兑美元汇率与上证指数相关性波动趋势跟人民币指数与上证指数相关性波动趋势基本相反,人民币兑日元、欧元汇率与上证指数相关性波动趋势跟人民币指数与上证指数相关性波动趋势基本相同。股票市场趋势性上涨后,我国外汇市场和股票市场关联性进一步降低。因此,为弱化外汇市场和股票市场联动风险,人民币兑美元、日元汇率的改革措施应选择在股票市场趋势性上涨阶段推出,尤其是人民币兑美元汇率改革措施的推出;人民币兑欧元汇率的市场化改革对时机窗口要求不高,故在人民币汇率市场化改革中可优先推行人民币兑欧元汇率市场化改革;人民币汇率综合改革措施则可选择在股票市场趋势性上涨阶段推出。     

国际市场冲击、名义汇率和股票市场收益——基于汇改后数据的经验研究

运用协整理论和时滞增广VAR模型,研究自2005年7月人民币汇率改革以来我国A股市场、外汇市场和美国股票市场的联动关系及其传导机制,发现美国股票市场通过流量渠道对我国股票市场和人民币汇率产生影响。我国资本市场受到国际资本市场影响的最根本原因在于中国实行的是出口导向型经济增长方式,而不是人民币汇率制度。因此,维护我国资本市场稳定的关键在于转变经济增长方式,在转变过程中要保持人民币汇率的相对稳定。     

人民币汇率与上证指数互动的实证研究

人民币自从05年我国进行人民币汇率制度改革之后就进入了一个快速增值的时期。而与此同时,中国的股票市场在各种力量的共同作用之下,也经历了一番较大幅度的波动。随着我国经济的不断开放以及金融市场的不断改革,中国汇率市场和股票市场两者之间的互动也会越加明显,探讨人民币汇率和中国A股股票市场之间的关联性,对于我国金融市场的进步与完善有一定程度上的帮助。     

人民币汇率波动对中国股市影响的实证分析

选取1999—2013年的上证指数,以市场化指数和对外依存度指代经济体制转换,实证检验人民币实际有效汇率是否通过经济体制转换作用于我国的股票市场。结果表明:人民币实际有效汇率与股票指数存在强烈的负相关,但市场化指数通过人民币汇率作用后对股票指数有很大的促进作用,而对外贸易依存度通过人民币汇率作用后也与股票指数呈负相关,且三项的系数都很大,即人民币汇率的频繁波动会影响多个参数,进而可能造成股票市场的剧烈波动。     

Country world betas: The link between the stock market beta and macroeconomic beta

We assess the connection between stock market linkages and macroeconomic linkages by using a world index model. Specifically, we test the association between the stock market beta (the sensitivity of country stock market index to world index) and macroeconomic betas (the sensitivity of national output and inflation to world output and inflation). Output betas account for about 20–26% of the cross-section of stock market betas. Controlling for previously-documented factors affecting stock market comovements: world output volatility is somewhat significant, while inflation betas, trade openness and world stock market volatility are insignificant in accounting for variation in stock market betas.     

Are the China-related stock markets segmented with both world and regional stock markets?

Implementing the Capital Asset Pricing Model framework, this study investigates the integration of three China-related stock markets, namely, the A-, B- and H-share markets, with both the Hong Kong stock market and the world market. An analysis of market segmentation versus integration using the Jorion and Schwartz model suggests that the A-share market was a segmented market during the period 1995–2004. However, evidence of a higher-level integration between the A- and B-share markets, and the A-share and Hong Kong stock markets is found in the sub-period tests. The hypothesis that the B- and H-share markets are becoming increasingly integrated with the world stock market is not supported.     

The empirical relationship between risk and return: evidence from the UK stock market

Previous studies reach no consensus on the relationship between risk and return using data from one market. We argue that the world market factor should not be ignored in assessing the risk-return relationship in a partially integrated market. Applying a bivariate generalized autoregressive conditional heteroscedasticity in mean (GARCH-M) model to the weekly stock index returns from the UK and the world market, we document a significant positive relationship between stock returns and the variance of returns in the UK stock market after controlling for the covariance of the UK and the world market return. In contrast, conventional univariate GARCH-M models typically fail to detect this relationship. Nonnested hypothesis tests supplemented with other commonly used model selection criteria unambiguously demonstrate that our bivariate GARCH-M model is more likely to be the true model for UK stock market returns than univariate GARCH-M models. Our results have implications for empirical assessments of the risk-return relationship, expected return estimation, and international diversification.     

The determination and international transmission of stock market volatility

This paper extends the literature on low-frequency analysis of the causes and transmission of stock market volatility. It uses end-monthly data on stock market returns, interest rates, exchange rates, inflation, and industrial production for five countries (Britain, France, Germany, Japan, and the US) from July 1973 to December 1994. Efficient portfolios of world, European, and Japanese/US equity are first constructed, the existence of multivariate cointegrating relationships between them is demonstrated, and the transmission of conditional volatility between them is described. The transmission of conditional volatility from world equity markets and national business cycle variables to national stock markets is then modeled. Among the main findings are: first, world equity market volatility is caused mostly by volatility in Japanese/US markets and transmitted to European markets, and second, changes in the volatility of inflation are associated with changes of the opposite sign in stock market volatility in all markets where a significant effect is found to exist. To the extent that the volatility of inflation is positively related to its level, this implies that low inflation tends to be associated with high stock market volatility.     

What Influences Stock Market Behavior in Russia and Other Emerging Countries?

We empirically test the dependence of the Russian stock market on the world stock market and world oil prices in the period 1997:10–2012:02. We also analyze countries that can be considered to be relatively similar to Russia, e.g., Poland, the Czech Republic, and South Africa. First, we apply a rolling regression to identify periods when oil prices or stock indices in the United States and Japan were important. Surprisingly, oil prices are not significant for the Russian stock market after 2006. Second, we employ a TGARCH-BEKK model to assess the degree of correlation between the markets in question, taking into account the global market stochastic trend. Correlation between markets increased between 2000 and 2012.     

我国证券市场开设国际板存在的障碍及解决对策

我国在世界经济地位日益提升,且证券市场国际化逐渐加快,因此,我国现在急需建成一个国际金融中心。国际金融中心的标志之一就是交易市场向国际开放,而国际板的开设是国际金融中心建设的重要一步。本文阐述了我国证券市场开设国际板所引发的主要争论,包括:发行之争;利弊之争;时机之辩。分析了我国开设国际板急需解决的三个主要障碍,即各方利益均衡问题、避免拉低我国股票市场的估值、国际板在我国良好运行等,并给出问题解决的对策:分步推行国际板;完善我国证券市场制度建设;提高监管和服务水平。     

Mean reversion in Southeast Asian stock markets

This paper assesses the predictable component of South East Asian stock markets using a bootstrap resampling method to estimate the small sample distributions of variance ratio statistics. We find evidence of mean reversion in long horizon dollar adjusted excess returns. The robustness of the results is assessed by adjusting stock returns for potential time-varying expected returns and partial integration of these emerging markets into world capital markets. In all but one case, mean reversion is shown to be due to either time-variation of risk exposure and prices of risk or partial integration of the local market into world stock markets. These results clearly illustrate the dangers of testing market efficiency without carefully adjusting stock returns for time variation in expected returns and the partial integration of local markets into world markets.     

Intraday Empirical Analysis and Modeling of Diversified World Stock Indices

This paper proposes an approach to the intraday analysis of diversified world stock accumulation indices. The growth optimal portfolio (GOP) is used as reference unit or benchmark in a continuous financial market model. Diversified portfolios, covering the world stock market, are constructed and shown to approximate the GOP, providing the basis for a range of financial applications. The normalized GOP is modeled as a time transformed square root process of dimension four. Its dynamics are empirically verified for several world stock indices. Furthermore, the evolution of the transformed time is modeled as the integral over a rapidly evolving mean-reverting market activity process with deterministic volatility. The empirical findings suggest a rather simple and robust model for a world stock index that reflects the historical evolution, by using only a few readily observable parameters. Mathematics Subject Classification: (1991) primary 90A12, secondary 60G30,62P20 JEL Classification: G10, G13     

Networks and equity market integration: European evidence

Deregulation, globalization, and technological developments have altered the business strategies of stock exchanges around the world. We investigate whether the adoption of network strategies by stock exchanges creates additional value in the provision of trading services. Using unbalanced panel data from all major European exchanges over the period 1996-2000, we examine the consequences of network cooperation on a number of stock market performance measures. We show that adopting a network strategy is associated with higher market capitalization, lower transaction costs, higher growth, and enhanced international stock market integration.     

基金是否是稳定市场的中坚?

一种传统的观点认为:基金是稳定市场最坚实的支柱.针对过去中国证券市场波动幅度剧烈、投机氛围浓烈的特点,完善市场功能合乎逻辑的政策建议显然是大力发展机构投资者.